### `subscription`

```yaml title="subscription"
subscription:
  enable_deduplication: true
  enabled: true
  max_opened_subscriptions: null
  mode:
    callback:
      heartbeat_interval: disabled
      listen: example_listen
      path: example_path
      public_url: http://service.example.com/public_url
      subgraphs: []
    passthrough:
      all:
        heartbeat_interval: disabled
        path: null
        protocol: graphql_ws
      subgraphs: {}
  queue_capacity: null
```
